Math, asked by 0Terabhai0, 20 days ago

write any equation for me... maths only..

Answers

Answered by cool5257boy

11

Answer:

In △ABC,∠BAD+∠ADB+∠DBA=180∘ by angle sum property of a triangle.

50∘+90∘+∠DBA=180∘

⇒∠DBA=180∘−140∘=40∘

∴∠B=40∘

Answered by itzheartgirl

3

Answer:

answer :

Angle B = 40 degree.

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